I think at the time a lot of people just heard 'NHS' as opposed to 'NHS charities' and believed they were donating to help save/fund the NHS.I think this was made clear at the time wasn’t it? I don’t think anyone thought the money was going to the nhs, it was for staff well-being.
I saw pictures of staff rooms being improved and massages etc being provided. Fair enough to me, it’s hard work being an nhs staff member and the quality of their rest spaces can be grim and the pandemic must have been really awful and intense for the them whilst at work. I think charities that improved their working lives during the pandemic were a great thing.